Electric cooking appliance



May 20, 1930. A. BVERSTED ET AL 1,759,431

ELECTRIC COOKING APPLIANCE Filed Oct, 14, 192 7 J08? brs AZfredBexzsZeaZ 4/ FIT/1.3 ens/ea? Q v10." I by y5- Patented May 20, 1930 PATENT OFFICE ALFRED IBERSTED AND MARTIN IBERSTED, OF CHICAGO, ILLINOIS EECTRIC COOKING APPLIANCE Application filed October 14, 1927. Serial No. 226,236.

This invention relates to improvements in electric cooking appliances such as waffle irons and the like, having two sections each electrically heated connected by suitable hinge means.

It is an object of this invention to provide simple and satisfactory means for protecting the hinge and connecting wiresbetween the sections.

It is also an object of this invention to provide an improved waffle iron constructed with hoods for inclosing the hinge and also the wire connections and affording a suitable receptacle for the terminal posts of the waffle iron.

Other and further important objects of this invention will be apparent from the disclosures in the specification and the accompanying drawings.

This invention gin a preferred form) is illustrated in the rawings and hereinafter more fully described.

On the drawings:

Figure 1 is a side elevation of an electric waflie iron embodying the principles of this invention.

Figure 2 is a side elevation of the waffle iron in open position.

Figure 3 is an enlarged fragmentary view taken on line IIIIII of Figure 1, with parts of the hood member broken away.

Figure 4 is a fragmentary vertical section taken on line IV--IV of Figure 3.

Figure 5 is a vertical detail section taken on line VV of Figure 3.

Figure 6 is an enlarged detail section of one of the wiring connections taken on line VI-VI of Figure 4.

,As shown on the drawings:

In the present instance the improvements of this invention are shown associated with an electric waflie iron comprising a base 1 supporting a bottom wafiie iron section 2 and a top waflle iron 3. Each of the sections 2 and 3 is equipped with a waflie mold adapted to be heated by an electric heating unit, one

of which is positioned in each of the waffleiron sections 2 and 3. The upper and lower heating elements positioned inthe sections 3 and 2 respectively, are connected by means of wires covered with insulation and positioned within a flexible wire conduit 6.

The means shown for connecting the upper and lower waflle iron sections comprise a lower hinge plate 7 the ends of which are provided with apertures 8 for the purpose of receiving mounting screws 9 to hold the lower hinge plate secured to the exterior of the back portion of the lower waflie iron section 2. Integrally formed on the middle of the lower margin of the lower hinge plate 7 is an apron plate 10 which is positioned directly below a pair of terminal posts 11 which project through suitable apertures provided in the lower hinge plate 7 and are rigidly held in place by nuts 12. Integrally formed at right angles to the lower margin of the hinge plate 7 on each side of the extension plate 10 is a bottom plate 13 having integrally formed on the inner longitudinal margin thereof an upwardly projecting triangular plate 14, the upper tapered end of which is out off to afford a shoulder at 15. Each end portion of the lower hinge plate 7 outwardly of the triangular plate 14 is provided with an opening through which the flexible wire conduit 6 extends.

Integrally formed on the middle portion of the upper margin of the lower hinge plate 7 is an outwardly projecting top plate or flange 16 having integrally formed on each end thereof an upwardly projecting hinge lug or ear 17 provided with a stop shoulder 18 on the upper portion of the peripheral edge thereof. Each of the hinge lugs 17 is provided with an elongated slot 19 through which a hinge pin 20 loosely projects. A lower hood or shield constructed preferably of sheet metal is associated with the lower hinge section and comprises a main plate 21 provided with a large plug receiving opening 22, the margin of which is directed inwardly to afford a continuous guide flange 23 for an electric plug. The upper margin of the hood plate 21 is bent inwardly at right angles to afford a flange 24 adapted to rest on the shoulders 15 provided on the upper ends of the triangular plates 14 forming an integral part of the lower hinge plate mechanism. Integrally formed at right angles oneach end of the lower. hood plate 21 is a side plate 25 ing hood 01'' sh adapted to be positioned to the outside of the outer longitudinal edge of one of the bot tom'plates 13 to form a recess or pocket for inclosing and protecting the lower portion of one of the flexible wire conduits 6. Each of the lower hood end plates 25 has integrally formed at right'angles to the inner or rear margin thereof an apertured flange or lug 26 through which one of the retaining screws 9 passes to hold the lower hood 21 secured in position upon the lower hinge plate 7. It

will thus be noted that the lower hood plates 21 and 25 coact with the flange plates 13 and 14 of the lower hinge plate to afford a protecting housing at each end of the lower hinge mechanism for inclosing each of the wire conduits 6 which project outwardly from the lower waflie iron section 2 through the lower hinge plate 7 and then continue upwardly and are coiled around the hinge pin 20 and project through suitable apertures provided in a top hinge plate 27. i

- The hinge means also comprises an upper hinge section consisting of the upper hinge plate 27, each end ofwhich is provided with apertures 28 for receiving retaining screws 29 to hold the upper hinge plate rigldly secured to the back portion of the upper wafflev iron section 3. Integrally formed near each end of the lower margin of the top hinge plate 27 is a downwardly and outwardly curved tongue or plate 30, each of whlchhas rigidly secured or integrally formed on the inner side margin thereof an upwardly directed lug or flange 31 having a round aperture therein through which the hingepin 20 projects. The two insulated connecting w res engaged in the flexible conduits 6 are coiled around the projecting ends of the hinge pm 20 adjacent the inner. surfaces of the flanges 31.

Associated with the upper hinge plate 27 is a metal protecting hood or cover 32 having integrally formed on the ends thereof side flanges or closure plates 33 which project downwardly below the lower outer edge of the hood 32. Integrally formed at each end of the upper hood 31 is an apertured lug or extension 34 through which the upper retaining screws 29 project to hold the upper .hood associated with the upper hinge plate. The side flanges 33 of the upper hood together with the extensions 30 and 31 formed on the upper hinge plate afl'ord suitable pockets or recesses wi hin which the coiled flexible conduits 6 are protected.

Each of the hinge plates has associated therewith a protecting hood or shield where-- by the connecting wires are completely inclosed within suitable recesses 0r pockets formed between the end plates of said hoods and flange plates integrally formed on the respective hlnge (plates, The lower protect- 1el is provided with a flanged opening at 22 for the purpose of permitting an electric plug to be projected therethrough into engagement with the terminal posts 11 of the wafile iron. It will be noted that the upper and lower hinge plates together with the upper and lower protecting hoods and shields may be constructed of sheet metal or the like and suitably interfit with one another to provide not only protecting chambers or pockets for the wires connecting the waflle iron sections, but also a protecting housing for the terminal posts. When the upper section 3 of the waffle iron is swung upwardly into an open position, the upper protecting hood 32 moves downwardly into the lower protecting hood until the advance edges of the plates come into contact with the lower hinge plate 7 which acts as a stop for holding the upper waflle iron section 3 in an open position to expose the lower wafile plate ready to receive a quantity of waflle batter. hen the waflie iron is open, it will be noted that the tongues 30 integrally formed on the upper hinge plate 27 are positioned to span the space between the upperand lower waffle iron sections, thereby protecting the flexible wire conduits 6.

Figure 6 is across sectional view of one of the conduits 6 showing therein the spacing therefrom of the wire core surrounded by insulation 5.

The stop shoulder 18 on the upper portion of the lower hinge plate ear 17 is arranged'to be contacted by the upper plate when the same is swung open to hold the same in open position as shown in Figure 2.

We are aware that many changes may be made, and numerous details of construction may be varied through a 'wide range without departing from the principles of this invention, and we therefore do not purpose limit- 'ing the patent granted hereon, otherwise than hinge plates, flanged extensions on said hinge plates, apertured hinge lugs formed on said flanged extensions, a hinge pin projecting through the apertures of said hinge lugs, exible wire connections leading from one cooking section to the other and coiled around the ends of said hinge pin to the outside of said apertured hinge lugs, terminal posts mounted on the lower hinge plate, and protecting hoods attached to the upper and lower hinge plates to form protecting housi-ngs for the hinge lugs, the flexible wire connections and said terminal posts.-

2. In an electrical cooking device, a pair of cooking sections, a hinge connection between said sections and a pair of electrical leads adapted to carry current from one section to the other, each of said leads making a complete loop adjacent the axis of said hinge connection to reduce the degree of flexure of said leads as said cooking sections are moved towards and away from each other.

3. In an electrical cooking device, a pair of cooking sections, a hinge connection between said sections, a pair of electrical leads adapted to carry current from one section to the other, a hood having closed ends and of approximately quadrantal cross-section secured to the upper section, a hood secured to the lower section having slots therein to receive the quadrantal hood as the upper section is elevated, said hoods enclosing said hinge connection and electrical leads.

4. In an electrical cooking device, a pair of hingedly connected cooking sections, a

pair of electrical leads adapted to carry current from one section to the other, two pairs of plates secured to the upper section, each pair enclosing one of said leads, and means adaptedto bridge space between said plates in all relative positions of said cooking sections and thereby protect said leads.

5. In an electrical cooking device, a pair of cooking sections, interfitting hoods secured one to each of said sections, hinge means within said hoods connected to said sections, a pair of electrical leads adapted to carry current from one section to the other, each of said leads making a complete loop within said hoods adjacent the axis of said hinge for reducing the degree of flexure of such leads as said cooking sections'are moved towards and away from each other.

6. In an electrical cooking device, a pair of cooking sections, hinge mechanism connecting said sections, connecting wires extending from one section to the other and terminal posts on one section, said hinge mechanism including connected hinge plates each having a plurality of flanges formed thereon adapted to shield the connecting wires and the terminal posts.

7. In an electrical cooking device, a pair section, apertured lugs formed on said hinge plates, a hinge pin passing through said apertured lugs and having said connecting wires looped around the projecting ends thereof, flanges formed on the hinge plates through which said terminal posts pro ect, and hoods supported on said hinge plates adapted to cooperate with said flanges to inclose the looped wires and said terminal posts, hoods having an opening to permit an electrical plug to be projected therethrough for engagement with said terminal posts.

In testimony whereof, we have hereunto subscribed our names at Chicago, Cook County, Illinois.

ALFRED BERSTED. MARTIN BERSTED.

of cooking sections, hinge mechanism connecting said sections comprising a pair of hinge plates, apertured hmge lugs formed thereon, a hinge pin projecting through said apertured hinge lugs, and interfitting hoods secured to said hinge plates to inclose said hinge lugs and the hinge in.

.8. In an electrical cooking device, a pair of cooking sections, s aced hinge lugs on each section, connecting wires between the sections and terminal posts on one section, protecting hoods, flanges connected to said hinge lugs arranged to cooperate with said hoods to provide a plurality of protecting housings for separating and protecting the service wires and said terminal posts.

9. In anelectrical cooking device, a air of cooking sections, hinge plates secure to said sections, connecting wires between said sci-lions and terminal posts connected to one one of said 

